Species richness, geographic distribution and endemism of Pinguicula (Lentibulariaceae) in the Mexican Transition Zone

IF 1 4区生物学 Q3 PLANT SCIENCES

Phytotaxa Pub Date : 2024-03-14 DOI:10.11646/phytotaxa.641.1.3

Jorge David López-Pérez, Sergio Zamudio, Guadalupe Munguía-Lino, Aarón Rodríguez

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引用次数: 0

Abstract

The genus Pinguicula (Lentibulariaceae) is composed of 115 species of carnivorous plants and Mexico is a center of diversification. The Mexican Transition Zone (MTZ) is the boundary between the Nearctic and Neotropical regions. It includes the main mountain ranges of Mexico, which extend south to northeastern Nicaragua. Its geological history, physiographic diversity and climatic complexity would have provided the environment to support a rich flora as well as angiosperm endemism. It was expected that the distribution of Pinguicula would have the same pattern. To test this hypothesis, a database was constructed based on the review of herbaria specimens, digital herbaria, bibliography, and databases. Species richness distribution and endemism were evaluated by country, biome, biogeographic province, elevation gradient, and three grid-cells sizes. The species richness of Pinguicula was centered in Mexico in an elevation gradient extending from 1,501–2,000 m. Also, species richness was greatest in the Tropical & Subtropical Coniferous Forest biome. However, considering biogeographic criteria, the Sierra Madre Oriental (SMOr) was the richest province. This was also supported by the distribution of the cells with the highest species richness and endemism. The results showed that the pattern of species richness and endemism of Pinguicula was concentrated along the MTZ, particularly in the SMOr.

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墨西哥过渡区 Pinguicula（唇形科）的物种丰富度、地理分布和特有性

Pinguicula属（唇形科）由115种食肉植物组成，墨西哥是其多样化的中心。墨西哥过渡区（MTZ）是近北区和新热带区的分界线。它包括墨西哥的主要山脉，向南延伸至尼加拉瓜东北部。其地质历史、地貌多样性和气候复杂性为丰富的植物区系和被子植物的特有性提供了有利环境。预计 Pinguicula 的分布也会有相同的模式。为了验证这一假设，我们在查阅标本馆标本、数字标本馆、参考书目和数据库的基础上建立了一个数据库。按照国家、生物群落、生物地理省、海拔梯度和三个网格单元的大小对物种丰富度分布和特有性进行了评估。Pinguicula 的物种丰富度以墨西哥为中心，海拔梯度为 1501-2000 米。不过，从生物地理标准来看，东马德雷山脉（SMOr）是物种最丰富的省份。物种丰富度和特有性最高的单元的分布也证明了这一点。研究结果表明，松果菊的物种丰富度和特有性主要集中在 MTZ 沿线，尤其是在 SMOr。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Phytotaxa PLANT SCIENCES-

CiteScore

1.90

自引率

27.30%

发文量

956

审稿时长

1 months

期刊介绍： Phytotaxa is a peer-reviewed, international journal for rapid publication of high quality papers on any aspect of systematic and taxonomic botany, with a preference for large taxonomic works such as monographs, floras, revisions and evolutionary studies and descriptions of new taxa. Phytotaxa covers all groups covered by the International Code of Nomenclature foralgae, fungi, and plants ICNafp (fungi, lichens, algae, diatoms, mosses, liverworts, hornworts, and vascular plants), both living and fossil. Phytotaxa was founded in 2009 as botanical sister journal to Zootaxa. It has a large editorial board, who are running this journal on a voluntary basis, and it is published by Magnolia Press (Auckland , New Zealand). It is also indexed by SCIE, JCR and Biosis. All types of taxonomic, floristic and phytogeographic papers are considered, including theoretical papers and methodology, systematics and phylogeny, monographs, revisions and reviews, catalogues, biographies and bibliographies, history of botanical explorations, identification guides, floras, analyses of characters, phylogenetic studies and phytogeography, descriptions of taxa, typification and nomenclatural papers. Monographs and other long manuscripts (of 60 printed pages or more) can be published as books, which will receive an ISBN number as well as being part of the Phytotaxa series.